#address-bar {
    text-align: center;
    max-width: 600px;
    margin: auto auto 20px;
}

.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border: 1px solid #ccc;
    border-radius: 8px;
    text-align: center;
    max-width: 624px;
    margin-bottom: 20px;
}

.input-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

select, input[type="text"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

select:invalid {
    color: gray;
}

.btn {
    background-color: cornflowerblue;
    color: white;
    padding: 10px 20px;
    margin: 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.btn:hover {
    background-color: cornflowerblue;
}

.card {
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 20px;
    margin: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}